• Mainframe Systems Programmer - Logical…

    Ensono (Dover, DE)
    …a skilled Mainframe Systems Programmer with 5 + years of experience in mainframe security , specifically with RACF . The ideal candidate will have hands-on ... to apply.** **What You Will Need:** + Minimum 5 years of experience in Mainframe Security packages RACF . + College degree preferred + Technical Skills: +… more
    Ensono (09/25/25)
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  • Mainframe Security Engineer

    Ensono (Dover, DE)
    Mainframe Security EngineerRemote - United StatesJR011549 **About the role and what you'll be doing:** **Job Description Summary:** **This is a Mainframe ... Background Check is required for this position.** + Hands-on security administration experience with RACF , ACF2 and...plus + Bachelor's or master's degree preferred + Other mainframe security products a plus **Why Ensono?**… more
    Ensono (09/20/25)
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  • FNTS Senior Mainframe z/OS Engineer…

    First National Bank of Omaha (DE)
    …our customers, all while keeping cost containment top-of-mind. With an elevated security posture consisting of layered security solutions, FNTS specializes in ... **Summary of the Job:** Summary of the Job The Mainframe Senior Engineer Position is part of a managed...for This Role:** + z/OS Concepts (JES2, SDSF, TSO, RACF , HCD/IODF, SMP/E) + Communication Concepts (VTAM, TCP/IP) +… more
    First National Bank of Omaha (09/09/25)
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  • Mainframe Applications Development Sr…

    Citigroup (New Castle, DE)
    …knowledge of RACF (Resource Access Control Facility) or other security systems. **Testing:** + Experience in testing mainframe applications, including ... bottlenecks and implementing solutions to improve response times and resource utilization. ** Security :** + Understanding of mainframe security concepts and… more
    Citigroup (08/01/25)
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  • Mainframe Network Engineer

    Travelers Insurance Company (Dover, DE)
    …You Do?** + This position is a technical individual contributor role in the Mainframe Engineering (MOSE) team. The team is responsible for all aspects of the ... evaluation, configuration, security , implementation, and..., implementation, and support of the z/OS operating system, RACF , disk/tape storage and subsystems, and Communications Server for… more
    Travelers Insurance Company (08/01/25)
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